Finding the Fourth Proportional to 37,153.89, 51,275.97 and 21,235.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,153.89 : 51,275.97 = 21,235.31 : x
2. Step 2: Convert to fraction form
   37,153.89/51,275.97 = 21,235.31/x
3. Step 3: Cross multiply
   37,153.89x = 51,275.97 × 21,235.31
4. Step 4: Simplify right side
   37,153.89x = 1,088,861,118.50
5. Step 5: Solve for x
   x = 1,088,861,118.50/37,153.89
6. Step 6: Final answer
   x = 29,306.79